

피자를 삼각형으로 잘라 주세요.
[pʰit͡ɕalɯl samkakʰjʌŋɯlo t͡ɕalla t͡ɕusejo.]
Please cut the pizza into triangles.
삼각형의 세 각을 더하면 180도예요.
[samkakʰjʌŋɰi se kakɯl tʌamjʌn 180tojejo.]
The three angles of a triangle add up to 180 degrees.
이 표지판은 왜 삼각형 모양이에요?
[i pʰjot͡ɕipʰanɯn wɛ samkakʰjʌŋ mojaŋiejo?]
Why is this sign triangular?
"삼각형" is in the lesson "Science" (Level 39), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.